000
FZNT02 KNHC 112151
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT SEP 11 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS
 
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE 
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

PAN PAN

ATLANTIC BETWEEN 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 1800 UTC SAT SEP 11.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 12.
48 HOUR FORECAST VALID 1800 UTC MON SEP 13.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM IGOR NEAR 17.4N 41.2W 995 MB AT 2100 UTC SEP 11
MOVING W OR 275 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N
SEMICIRCLE AND 60 NM S SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
60 NM S SEMICIRCLE...180 NM NE QUADRANT AND 90 NM NW QUADRANT
WITH SEAS TO 18 FT.
.12 HOUR FORECAST HURRICANE IGOR NEAR 17.5N 43.6W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.24 HOUR FORECAST HURRICANE IGOR NEAR 17.6N 46.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 120 NM NE QUADRANT...75 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 110 NM NW QUADRANT. 180 NM NE SEMICIRCLE AND 90 
NM SW SEMICIRCLE WITH SEAS TO 21 FT.
.48 HOUR FORECAST HURRICANE IGOR NEAR 17.9N 51.0W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 120 NM NW AND SE QUADRANTS...150 NM NE QUADRANT AND 100 
NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NE AND 120 SW 
SEMICIRCLES WITH SEAS TO 24 FT.
.72 HOUR FORECAST HURRICANE IGOR NEAR 18.8N 54.8W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IGOR NEAR 20.3N 57.7W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT.
.120 HOUR FORECAST HURRICANE IGOR NEAR 22.0N 60.5W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN IGOR WARNINGS...FROM 15N TO 27N E OF 
45W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN IGOR WARNINGS...FROM 13N TO 
26N BETWEEN 40W AND 50W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN IGOR WARNINGS...FROM 14N TO 
25N BETWEEN 44W AND 54W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
ELSEWHERE FROM 25N TO 30N BETWEEN 42W AND 53W WINDS LESS THAN 20 
KT. SEAS TO 10 FT IN SE SWELL. 

.ATLC TROUGH 31N51W TO 18N51W. N OF 29N E OF TROUGH TO 45W SE 
WINDS 20 KT. SEAS 8 TO 10 FT IN SE SWELL. ELSEWHERE N OF 27N E 
OF TROUGH TO 40W E TO SE WINDS TO 20 KT. SEAS TO 9 FT IN SE 
SWELL. 
.24 HOUR FORECAST TROUGH DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.

.CARIBBEAN LOW PRES 14N66W 1009 MB. WITHIN 60 NM OF CENTER WINDS 
20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LOW PRES 16N70W 1008 MB...POSSIBLE TROPICAL 
CYCLONE. WITHIN 90 NM N SEMICIRCLE OF CENTER WINDS TO 20 KT. 
SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LOW PRES 17N74W 1008 MB...POSSIBLE TROPICAL 
CYCLONE. WITHIN 90 NM N SEMICIRCLE OF CENTER WINDS TO 20 KT. 
SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER AL. TROPICAL PREDICTION CENTER.